Rudder-brake



C. W. A. TAYLOR.

RUDDER BRAKE.

APPLICATION FILED FEB. 18. 1920.

Patented Dec. 27, 1921.

W, 19% M x 6M4,

UNITED, STATES PATENT OFFICE.

WIIM AL XA 7 3 TDUNSTWfN'TYNE ENGLAND EUDbER-BRAK E- Patented Dec. 27,1921.

Application filed February is, 1920. Serial No. 359,632.

airman apnea rim rnovisrons or run ACT or MARCH 3, 1921, 41 STAT. 1.., 1313.

To all whom it concern:

Be tknown thatl, CHAuLns WILLIAM ALEXANDER TaYLoR, a sub'ect of the King which I have filed a, plication in England. Jan. 19,1915,Patent5y umber 8541,)0f which the following is a s ecilication- I The subject of thisinvention is a rudder brake designed to damp the vibratory movements of ships rudders.

The inventionis illustrated in the accompanying drawing in which Figure l is an elevation, Fig. 2 a plan and Fig. 3 a detail sectional view drawn to a larger scale.

The rudder brake shown comprises an axle 1 rigidly mounted on the rudder quadrant 2 and engagin the tiller 3.

Sleeving the stu shaft 1 and revoluble thereon is a drum 4 or sheave wrapped by a rope-way 5 the terminal ends of which are secured to brackets 6, 7 located respectively in the port side and the starboard side of the deck 8. It will be seen that as the quadrant swings from side to side the drum 4: or sheave will revolve about the stub shaft 1.

To resist the rotary movements of the drum or sheave, there is fitted in the stub shaft 1 braking means comprising a ring 9 of friction material, such as wood embedded in the body of the stub shaft 1 and engaging the under surface of the drum or sheave 4, a plate 10 abuttin against the upper surface of the drum or s eave 4, a bolt 11., a nutforming hand wheel 12 for regulating the pressure applied to the friction surfaces and a spring 13 interposed between the head 14 of the bolt 11 and the under surface of the stub shaft crown 15 for applying the pressure to the friction surfaces. To prevent 1o tation of the plate 10 with the drum 4 or sheave, dowel pins 16 are provided, and dowel pins 17 are provided to prevent rota tion of the bolt 9.

It will be understood that the pressure on the friction surfaces willv be regulated by i manipulation of the hand wheel 12 to suit stretching screw 19 is provided for maintaining the rope-way taut.

I claim 1. The combination with a rudder quadrant of a drum rotatably mounted thereon and bodily movable therewith, a thwartship rope-way wrapping, and adapted to be traveled by said drum, and braking means for resistin the rotary movements of said drum and t ereby damping the movements of said rudder quadrant.

2. A rudder brake comprising, in combination, a rudder quadrant, a stub shaft rigidly mounted thereon, a drum revoluble on said stub shaft, a thwartship rope-way wrapplng said drum, friction means engaging said drum, resilient means for applying pressure to said friction means and pressure regulating means.

3. The combination with a rudder quadrant of a sheave mounted to revolve on said quadrant, means for retarding its revolution by friction, a rope passing around said sheave so arranged that the working of the quadrant from side to side will cause the sheave to revolve and the rope to wind on one side and wind oif on the other side, and stretching means attached to the ships deck for settin up said rope taut between the ends.

4. he combination with. a pivoted rudder quadrant, of a drum rotatably mounted on said quadrant eccentrically of the pivot of said quadrant, a rope wrapping said drum, anchorages for the ends of said rope, and means for braking the rotation of said drum.

5. The combination with a rudder quadrant mounted for angular movement, of drum rotatable in the movement of said quadrant, a rope wrapping said drum, anchorages for the ends of said rope and means for braking the rotation of said drum.

6. A rudder brake comprising, in combination, a rudder quadrant, a stub shaft rigidly secured to said quadrant, a drum rotatable on said stub shaft, a thwartship rope-way wrapping said drum, a friction ringembedded in the body of said stub shaft and engaging the under surface of said drum, a plate engaging the upper side of said drum, a nutforming hand wheel engaging said plate, a bolt provided with a head and in screwthreaded relation with said wheel and a spring acting on the head of said bolt to 7 force said plate into engagement with said drum and thereby to press the under surface of saiddrum into frictional engagement with said ring so as to retard rotation of said drum.

7. A rudder brake comprising, in combination, a rudder quadrant, a stub shaft rigidly secured to said quadrant and provided with lubricant pockets on its cylindrical surface, a drum rotatable on said stub shaft, a thwartship rope-way wrapping said drum, a friction ring embedded in the body of said stub shaft and engaging the under surface of said drum, a plate engaging the upper side of said drum and formed with lubricant pockets on, its contact face, a nut-forming hand wheel engaging said plate, a bolt provided with a head and in screw-threaded relation with said wheel, and a spring acting on said bolt head to force said plate into engagement with said drum and thereby to press the under surface of said drum into frictional engagement with said ring so as to retard rotation of said drum.

8. A rudder brake comprising, in combination, a rudder quadrant, a stub shaft rigidly secured to said quadrant, a drum rotatable on said stub shaft, a thwartship rope-way wrapping said drum, a friction ring embedded in the body of said stub shaft and engaging the under surface of said drum, a plate engaging the upper side of said drum, dowel pins connecting said plate with said stub shaft to prevent rotation of said plate, a nut-forming hand wheel engaging said plate, a bolt provided with a head and in screw-threaded relation with said wheel, dowel pins connecting said head with said stub shaft to prevent rotation of said bolt, and a spring acting on said bolt head to force said plate into engagement with said drum and thereby to press the under surface of said drum into frictional engagement with said ring so as to retard rotation of said drum.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

CHARLES WILLIAM ALEXANDER TAYLOR.

Witnesses:

KATE FOTHERINGHAM, ISABEL RITCHIE. 

